Left-handedness appears to be accompagnied with longer fingers on the left hand (and right-handedness with longer fingers on the right hand), check the present results at: specialization 3: left-handed
.

PhD. Jan van Strien - an expert in the field of left-handedness - has acknowledged that the present results are very interesting, and left-handedness has not been associated with finger length yet. Therefore we have decided to start a follow-up research program:

--------

Are you left-handed? Or is a member of your family left-handed?
And are you willing to participate in this follow-up program?